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C&K COMPONENTS KMR431GULCLFS Microminiature SMT Tactile Switch

The KMR 4 series is a microminiature SMT top-actuated tactile switch offering precise, reliable tactile feedback in a compact design. With a small footprint and four actuation forces, it excels in demanding automotive, industrial, and medical electronics environments. Rated IP40 for environmental protection, it features ultra-low current capabilities, making it suitable for applications requiring sensitive, low-power operation. This switch provides excellent tactile feel, quick bounce time below 3ms, and is compatible with lead-free reflow soldering processes per IEC standards, ensuring durability and consistent performance.

Authorized Distributors
Source:Newark
Part No:KMR431G ULC LFS
Stock:4983
Inv Date:06-15-2026
Price: Unit price: $1.13
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Source:DigiKey
Part No:KMR431G ULC LFS
Stock:6000
Inv Date:06-15-2026
Price: Unit price: $0.58539
Buy/RFQ:
Part No:KMR431G ULC LFS
Stock:8227
Inv Date:06-16-2026
Price: Unit price: $1.1
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Part No:KMR431GULCLFS
Stock:34440
Inv Date:06-15-2026
Price: Unit price: $0.4603
Buy/RFQ:
Part No:KMR431GULCLFS
Stock:34440
Inv Date:06-15-2026
Price: Unit price: $0.4603
Buy/RFQ:
Part No:KMR431GULCLFS
Stock:0
Inv Date:06-15-2026
Price: Unit price: $0.52
Buy/RFQ:

C&K COMPONENTS KMR431GULCLFS Microminiature SMT Tactile Switch Specifications:

  • Actuation Forces: 1.2N, 2.0N, 3.0N, 4.0N
  • Contact Material: Silver or Silver Gold+
  • Maximum Power: 1VA at 20 mVDC, 50 mA
  • Maximum Voltage: 32 VDC
  • Operating Temperature: -40°C to 85°C, -40°C to 125°C (ULC versions)
  • Storage Temperature: -55°C to 85°C, -55°C to 125°C
  • Life Cycle: 100,000 to 400,000 cycles depending on model
  • Travel: 0.20mm to 0.30mm
  • Bounce Time: <3ms
  • Environmental Protection: IP40
  • Soldering: Lead-Free Reflow Process per IEC 61760-1
  • Dimensions: Height 2.5mm, external diameter approx. 3.8mm
  • Packaging: In reels of 6,000 pieces
  • External Diameter: 3.8 mm + 2 mm

Buy the Buy MicroMiniature SMT Tactile Switch Part Number KMR431GULCLFS Online

Purchase the KMR 4 series microminiature SMT tactile switch online to ensure a reliable connection, excellent tactile feedback, and compatibility with lead-free soldering processes. With a small footprint and four actuation forces, this switch is suitable for demanding automotive, industrial, and medical electronics applications. Its ultra-low current capabilities support sensitive low-power devices, while its IP40 rating provides environmental protection. Buying online guarantees quick delivery, competitive pricing, and access to the latest versions of this durable, high-performance switch for your electronic projects.

Buy MicroMiniature SMT Tactile Switch KMR431GULCLFS now and experience high reliability, precise tactile feedback, and low power consumption for your compact electronic designs.

Frequently Asked Questions

Where can I buy C&K COMPONENTS KMR431GULCLFS?

You can click on the BUY or RFQ button to purchase KMR431GULCLFS from an authorized C&K COMPONENTS distributor.

How do I troubleshoot issues or seek technical support for part KMR431GULCLFS?

You can download the KMR431GULCLFS datasheet or visit the C&K COMPONENTS website for support.

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